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2 years ago

which car has better mileage, A 125/5 or B 120/6 please help me I am failing my test because of these problems

Mathematics

2 answers:

USPshnik [31]2 years ago

8 0

So, if you divide 125 by 5 you get 25

and if you divide 120 by 6 you get 20

So B is more better

faltersainse [42]2 years ago

4 0

Answer: Good afternoon fellow student, to answer your question

125 divided by 5 = 25

120 divided by 6 = 20

The answer is A

Step-by-step explanation:

Hope this helps!

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On the way home from her friend's house Sandy skateboards 30% of the way, walks 1/2 of the way, and then skips the rest of the w

netineya [11]

Answer:

0.2

Step-by-step explanation:

Convert the walking to percent

$\frac{1}{2} \times 100 = 50$

Add both skateboarding and walking

$30\% + 50\%\\\\= 30 + 50\\\\= 80$

Now, subtract that from a whole percent

$100 - 80 = 20\\\\20\%$

Convert it to a decimal

$20\% = \frac{20}{100} \\\\=20 \div 100\\\\= 0.2$

Therefore, in decimal, 0.2 is the number that shows the portion of the distance Sandy skips.

3 0

3 years ago

6. Andre and Elena are each saving money. Andre starts with $100 in his savings account and adds $5 per week. Elena starts with

lora16 [44]

You need to write an equation for each.

For Andre, he has 100 dollars, and every week gets 5 dollars more. You add the 5 dollars, and Since you don't know how many weeks it has been, use a variable.

$100 + 5w$

For Elena, she has 10 dollars, and gets 20 each week.

$10 + 20w$

Now that you know that it has been 4 weeks, you can plug in 4 for the variable for weeks.

Andrew:

$100 + 5(4) = 100 + 20 = 120$

Elena

$10 + 20(4) = 10 + 80 = 90$

Andrew has more money in this time.

To find when they have the same amount, equal their expressions to each other. This means that they will have the same amount (because they are equalled) and you can solve to find the variable, which means the weeks that they are equal at.

Bring the like terms to each side by canceling them out. Since you have positive 10, then subtract 10 to each side. You have 5w, so subtract 5w to each side.

$100 + 5w = 10 + 20w \\ 90 + 5w = 20w \\ 90 = 15w \\ 90 \div 15 = 6 \\ 6 = w$